- (n.) A tendril or clasper.
- (n.) See under Cloud.
- (n.) The external male organ of trematodes and some other worms, and of certain Mollusca.
- (n.) The jointed, leglike organs of Cirripedia. See Annelida, and Polychaeta.
- (n.) A soft tactile appendage of the mantle of many Mollusca, and of the parapodia of Annelida. Those near the head of annelids are Tentacular cirri; those of the last segment are caudal cirri.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). cirrus. Retrieved September 24, 2026, from http://smartdefine.org/cirrus/definitions/1987727 |
| Chicago | Webster's. 2011. "cirrus" http://smartdefine.org/cirrus/definitions/1987727 (accessed September 24, 2026). |
| Harvard | Webster's 2011, cirrus, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/cirrus/definitions/1987727>. |
| MLA | Webster's. "cirrus" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/cirrus/definitions/1987727> |